Charles a



(No Model.)

No. 416,984. Patented Dec. 10, 1889.

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' UNITED STATES PATENT OFFICE,

CHARLES A. BAUER, OF SPRINGFIELD, CIIIO, ASSIGNOR OF ONE-HALF TO TIIE IVARDER, BUSHNELL & GLESSNER COMPANY, OF SAME PLACE.

MECHANISM FOR DRIVING RATTLERS OR OTHER MACHINERY.

SPECIFICATION forming part of Letters Patent No. 416,984, dated December 10, 1889..

Application filed July 22,1889- Serial No. 318,186. (No model.)

T0 at whom it 7220 concern.-

lle it known that I, CHARLES A. BAUER, a citizen of the United States, residing at Springfield, in the county of Clark and State of Ohio, have invented certain new and useful Improvements in Mechanism for Driving Rattlers or other Machinery, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to machines known as rattlers or tumblers for abrasively treating iron castings to cleanse and partially smooth or polish them, removing the adhering grit, and rendering them ready for use.

The improvements have reference to the conjoint employment of frictional mechanism to transmit motion from the driving-shaft to the rattler-shaft, and the weight of the rattler and its load as the medium by which the frictional contact between the operating and operated members of such mechanism shall be effected, maintained, and regulated, the latter being according to the load the rattler is carrying; have reference to an organization involving the use of anti-friction wheels for the support of one end of the rattler-arbor, involving the use of a vertically-sliding box for the other end of the arbor, a frictionwheel on the arbor, a driving-shaft beneath, and a friction-wheel 011 it, the intimacy of the two friction-wheels being determined by the gravity of the rattler, and lllVOlVll'lg means to raise the rattler-arbor and disengage the friction-wheels, and have reference to certain features of construction, hereinafter more fully described, and pointed outin the claims.

In the accompanying drawings, forming a part of this specification, and in which like reference-letters indicate corresponding parts, Figure 1 represents a side elevation of one rattler entire and a portion of another organized in conjunction with one exemplification of my improvements aforesaid; Fig. 2,an end elevation of the same with the driving-shaft in section on the line X X of Fig. 1; Fig. 3, a detail plan view of a bed-piece, a standard, a

sliding block, and the means for adjusting it up and down.

Fixed to the floor or other suitable foundation are a number of sills or bed-pieces A B,

upon the former of;whieh are secured suitable standards C, constituting the bearingblocks for a driving-shaft D, the length of which is determined by the number of rat-- tlers which are to be operated. This shaft is provided with one or more driving-pulleys E, which, through suitable belts, as F, receive motion from any convenient source-for instance, from an ordinary line-shaft. At suit-- "able intervals the shaft- D is provided with a friction driving-wheel G, having its periphery fashioned as may be desired under particular circumstances, but preferably constructed with aseries of alternating grooves and beads, so as to increase the friction-surface.

Upon the sills or bed-pieces B, I mount standards II, I, and .I, also astandard Kupon one of the sills A. In the standards I and J, I mount a shaft L, carrying two anti-friction wheels M 0. This shaft and these wheels are in duplicates or pairs, as seen in Fig. 2, and upon the wheels M M, I mount an anti-friction supporting-wheel I, while upon the wheels 0, I mount a similar wheel Q. One end of a rattler is carried by each of these wheels 'P and Q, which receive and support the adjacent end of the rattler-arbors R and S. The other end of the rattler-arbor is mounted in the vertically-sliding box T, fitted to slide in the upper portion of the standard II. This box T is raised and lowered by means of a wedge U, fitted within the standard and beneath the box T, and adjusted back and forth by means of a cam-lever V, the cam \V of which is pivoted to the wedge U and mounted between the standards and the curved arm Y, the cam \V being cut away to accommodate the adjacent end of the wedge during the manipulations of the wedge by the lever. During such manipulations the cam rolls between the standard and the arm Y, and thence causes the wedge to raise the box T or allow it to descend by gravity. By these means the rattler may be raised at one end and stopped by being thus placed out of position to receive motion from the driving-shaft D, &c.

The rattler-arbor is provided with a friction-wheel Z, which may also have any form of peripheral construction, but which, in the present instance, is of the same form as the friction-wheels G, so as to match therewith, as seen in Fig. 1.

The rattler itself may be of any approved type, and consists, essentially, of octagonal or polygonal heads a and a body b, with a suitable doorfor putting in and taking out the castings, as suggested by the dotted lines 0.

Referring now to the operation of my improvements, I would observe that the drivingshaft D, receiving motion as before described, transmits the same to the one or more rattlers frictionally connected therewith, as the case may happen to be. The weight of the rattler is essentially utilized, together with its load or charge, whether large or small, as a means of effecting and maintaining the frictional contact between the driving friction-wheels and the friction-wheel of the rattler. Such is the case because the rattler and its frictionwheel are practically incumbent upon the driving-shaft and its friction-wheels, the essential office of the box T being to guide and steady the rattler-arbor at that end. By this means it will be understood the greater the load the greater will be the frictional contact, and therefore that this frictional contact is automatically increased or decreased when the weight is increased or decreased. Thus the organization at all times maintains the degree of frictional contact necessary under the varying conditions as to weight of the rattler. The extension of the driving-shaft D under the series of rattlers, as suggested in Fig. 1, affords a most desirable and economical Way of operating the several rattlers to secure substantial uniformity in appearance of the output of the rattlers.

It will be understood that while the camlever and wedge are a convenient device for adjusting the arborblock, other means may be employed for this purpose.

While I have illustrated and described the rattler-shaft as normally tending to approach the driving-shaft, it is obvious that the invention will not be departed from by arranging the driving-shaft and the rattler-shaft to tend toward each other, or by arranging the driving-shaft to tend toward the rattler-shaft. I prefer, however, the plan illustrated. It will also be understood that my invention comprehends this tendency of the driving and driven shafts, whereby the one may operate the other through friction-wheels carried by them, the degree of the impact of said wheels being controlled by said tendency, whether a rattler-shaft or other shaft shall be involved in the organization.

llaving thus fully described my invention, what; I claim as new, and desire to secure'by Letters Patent, is

1. The combination, with a rattler having an arbor, and a friction-wheel carried by that arbor, the said arbor being mounted to allow the rattler to gravitate atthe end next to said wheel, of a driving-shat" t mounted in practically the same vertical plane as the axis of the said arbor, and having a driving frictionwheel engaging the rattler-wl1eel and arresting its gravity, and means to disengage said friction-wheels and make the rattlerinactive for loading and unloading it.

2. The combination, with a rattler having its arbor slidingly mounted at one end, and a grooved friction-wheel mounted thereon, of a driving-shaft mounted beneath the rattler and having a correspondingly fashioned friction-wheel engaging with said wheel, the firstnamed wheel sustaining the adjacent end of the rattler and its load by their impact, and means to adjust the rattler-arbor away from the said shaft.

3. In a rattler plant, the following instrumentalities: a driving-shaft and its frictionwheels, anti-friction Wheels mounted near said shaft in pairs at the opposite sides thereof, rattlers, each having a supporting-wheel at one end of its arbor mounted upon said antifriction Wheels, a standard, a sliding block therein carrying the other end of the respective rattlers, a friction-Wheel carried by each rattler-shaft and engaging With a frictionwheel, a wedge to engage said sliding block, and a cam-lever to engage the Wedge.

4. In a rattler, the combination, with a standard, a sliding block, and arattler-shaft, of a wedge beneath the block, an arm secured to the standard, and a eamlever pivotallyengaging with the Wedge and mounted between said arm and said standard.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES A. BAUER.

Witnesses:

J. F. MCGREW, WARREN HULL. 

